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Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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The average adult has about 21 square feet of skin.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.
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Medication errors are three times higher among children and infants than with adults.